CN1858464A - Controllable worm wheel and worm planet stepless speed changing driving device - Google Patents
Controllable worm wheel and worm planet stepless speed changing driving device Download PDFInfo
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- CN1858464A CN1858464A CN 200610021099 CN200610021099A CN1858464A CN 1858464 A CN1858464 A CN 1858464A CN 200610021099 CN200610021099 CN 200610021099 CN 200610021099 A CN200610021099 A CN 200610021099A CN 1858464 A CN1858464 A CN 1858464A
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Abstract
The controllable gear worm-planetary gear stepless speed changing drive device consists of mainly central worm on the input shaft, planet carrier, planet worm gear, ring gear, output shaft fixed to the planet carrier, servo drive unit, speed regulating gear installed together with the ring gear and speed regulating gear on the servo motor shaft. The planet worm gear mounted on the planet carrier is meshed separately with the central worm and the ring gear, and the speed regulating gear installed together with the ring gear is meshed with the speed regulating gear on the servo motor shaft to constitute the speed regulating gear transmission pair. The present invention can realize different transmission ratio through controlling the rotation speed of the servo motor so as to realize stepless speed changing. The present invention has the advantages of great transmitted power, high bearing capacity, compact structure, great transmission ratio range, etc.
Description
Technical field
The invention belongs to the stepless variable transmission technique field, more specifically saying so belongs to the mechanical stepless speed-changing transmission
Technical field.
Background technique
The stepless change transmission can make Power Drive Unit and external load reach optimum Match, the working condition requirement that can adapt to different machineries better, has energy-conservation, little, the low noise advantages of vibration, when connecting with the internal-combustion engine of automobile as stepless speed variator, it can improve the Economy of automobile significantly, improve the power character of automobile, reduce to travel and impact and alleviate driving fatigue, thus the smoothness and the Security that improve automobile running.Therefore the stepless change transmission has all obtained using very widely in a lot of fields.
Traditional mechanical continuously-variable transmission mainly contains four classes: friction type stepless speed changer, chain-type continuously variable transmission, variable v-belt drive, and pulse-type continuously variable transmission, wherein friction type stepless speed changer, chain-type continuously variable transmission and variable v-belt drive all are to rely on frictional force work, exist that frictional loss is big, efficient is lower, flexible slip and how much slips when work, correlated parts is easy to generate problems such as wearing and tearing, operating life is low, transmitted power is little, these stepless speed variators all need pressurization device in addition, make complex structure.Different with first three class stepless speed variator, pulse-type continuously variable transmission is to adopt the work of lower pair linkage mechanism, therefore have characteristics such as reliable operation, bearing capacity is strong, gearshift performance is stable, but pulse-type continuously variable transmission is when link motion, its inertial force can not obtain balance, to cause vibration and additional dynamic load, vibrating when high speed significantly to increase, efficient is reduced, its output speed has pulsation in addition, free wheel device in the output mechanism, its impact resistance and bearing capacity are all lower, have limited the ability of pulse-type continuously variable transmission transmitted power.
Summary of the invention
At the deficiency that the mechanical stepless speed-changing device of prior art exists, purpose of the present invention aim to provide a kind of have compact structure, bearing capacity height, in light weight, the velocity ratio excursion is big, transmission efficiency is high, stable drive, life-span are long, the controllable worm wheel and worm planet stepless speed changing driving device of reliable operation.
Foregoing invention purpose of the present invention can realize by the controllable worm wheel and worm planet stepless speed changing driving device with following technological scheme.
Controllable worm wheel and worm planet stepless speed changing driving device, mainly by casing, be installed in the central gear worm screw on the input shaft, planet carrier, planetary worm gear, ring gear, be installed with together output shaft with planet carrier, servo drive, speed regulation gear that is fixedly installed togather with ring gear and the speed regulation gear that is driven by servo drive constitute, the planetary worm gear that is installed on the planet carrier meshes with central gear worm screw and ring gear respectively, the speed regulation gear that is fixedly installed togather with ring gear and constitute the speed regulation gear transmission by the speed regulation gear engagement that servo drive drives, input shaft and output shaft are installed on the casing, by the rotating speed change realization output shaft of servo drive and the ratio changing between the input shaft.
In above-mentioned described scheme, the engagement denticle of planetary worm gear can be overall structure, also can be embedded structure, but promptly meshes denticle and worm gear body global formation, and the engagement denticle also can be the rolling denticle, settles on the worm gear body by the mode of inlaying.Be embedded in rolling engagement denticle on the worm gear body and can be a kind of in spheroid, cylindrical body and the cone.
In above-mentioned described scheme, said servo drive can be a kind of in actuating motor or hydraulic servo motor or the stepper motor.
In above-mentioned described scheme, the speed regulation gear transmission that speed regulation gear that is fixedly installed togather with ring gear and the speed regulation gear that is driven by servo drive constitute can be a kind of in cylindrical gearing pair, Bevel Gear Drive pair, worm and gear transmission and the helical gear drive pair.When the speed regulation gear transmission is cylindrical gears speed regulation gear transmission, can be inside engaged gear transmission or external gear pump transmission again.Constitute two gears of speed regulation gear transmission, the speed regulation gear that is fixedly installed togather with ring gear wherein, can be fixedly mounted on the ring gear by alignment pin and fixing bolt, the speed regulation gear that is driven by servo drive connects with the rotating shaft of servo drive by coupling.
In above-mentioned described scheme, said ring gear can be split type structure or monolithic construction, when ring gear is split type structure, can be rectilinear subdivision structure again or comprises the horizonally split formula structure of axis.
The present invention has also taked some other technical measures.
Basic thought of the present invention is the rotating speed that changes ring gear by servo drive, and then the rotating speed of change and the joining output shaft of planet carrier, thereby changes the rotating ratio between input shaft and the output shaft, realizes the stepless change transmission.
The working principle of the controllable worm wheel and worm planet stepless speed changing driving device that the present invention discloses is as follows:
Servo drive makes ring gear realize rotation motion by the speed regulation gear transmission, power plant drive the rotation motion of central gear worm screw by input shaft, the planetary worm gear that is installed on the planet carrier meshes with central gear worm screw and ring gear respectively, because the gear motion of planetary worm gear and ring gear and the gear motion of planetary worm gear and central gear worm screw are inconsistent, thereby cause being equipped with the planet carrier rotation motion of planetary worm gear, and then make the output shaft that is installed with together with planet carrier do rotation motion with planet carrier, promptly output shaft is to be different from the speed motion of input shaft rotating speed.Change the servo drive rotating speed, the transmission device output shaft also just correspondingly changes with respect to the velocity ratio of input shaft.Be the present invention by controlling the rotating speed of servo drive, can realize output shaft with respect to input shaft with different velocity ratio rotation motions, realize the stepless change transmission.
The controllable worm wheel and worm planet stepless speed changing driving device that the present invention discloses, reach optimum Match except having can make Power Drive Unit and the external load that the stepless change transmission had, the working condition requirement that can adapt to different machineries better, vibration and noise is low, outside the advantage such as energy-conservation, also has the peculiar advantage of worm wheel and worm planet driving mechanism, it is big to be that the present invention also has a transmitted power, the bearing capacity height, compact structure, in light weight, the velocity ratio excursion is big, the transmission efficiency height, stable drive, life-span is long, reliable operation, advantages such as the ability of shock resistance and anti-vibration is strong can be used as the structural requirement compactness, bearing capacity requires high, the velocity ratio excursion requires infinitely variable speed transmissions big and all kinds of machineries that transmission power is big.
Of the present invention open, provide a kind of mechanical stepless of newtype to become device, opened up a kind of new stepless change kind of drive.
Description of drawings
Accompanying drawing 1 is a structural principle schematic representation of the present invention.
Accompanying drawing 2 is a general structure schematic representation of the present invention.
Accompanying drawing 3 is an outward appearance general structure schematic representation of the present invention.
Figure grade implication in the above-mentioned accompanying drawing is as follows:
1 input shaft; 2 toroid helicoids worms; 3 planetary worm gears; 4 ring gears; 5 planet carriers; 6 output shafts; 7 speed regulation gears; 8 speed regulation gears; 9 actuating motors; 10 casings.
Embodiment
Controllable worm wheel and worm planet stepless speed changing driving device, its structure such as accompanying drawing 1, shown in accompanying drawing 2 and the accompanying drawing 3, by casing 10, actuating motor 9, be positioned at casing and be installed in anchor ring central gear worm screw 2 on the input shaft 1, planet carrier 5, be installed in the planetary worm gear 3 on the planet carrier, ring gear 4, be installed with together output shaft 6 with planet carrier, be fixedly mounted on the speed regulation gear 8 on the ring gear and the speed regulation gear 7 that connects with the actuating motor output shaft by coupling constitutes by alignment pin and fixing bolt, the planetary worm gear that is installed on the planet carrier meshes with central gear toroid helicoids worm and ring gear respectively, the speed regulation gear 8 that is fixedly installed togather with ring gear 4 and constitute the speed regulation gear transmissions by speed regulation gear 7 engagements that coupling connects with the actuating motor rotating shaft, input shaft and output shaft are installed on the casing, by the rotating speed of control break actuating motor, realize moving with different velocity ratios between speed change gear output shaft and the input shaft.The engagement denticle of planetary worm gear is a roller engagement denticle, and roller engagement denticle is placed on the worm wheel body by the mode of inlaying.Said speed regulation gear transmission is a cylindrical gears external gear pump transmission.Said ring gear is the horizonally split formula structure that comprises axis.
The controllable worm wheel and worm planet stepless speed changing driving device that the present invention discloses is not limited to the described form of the foregoing description; the invention thought that discloses according to the present invention; one of ordinary skill in the art also can be designed other embodiments not paying creatively work; worm wheel and worm planet mechanism as device can use replacements such as involute planetary mechanism, cycloidal-pin wheel planetary mechanism, oscillating tooth planetary mechanism, harmonic wave planetary mechanism, but these embodiments still belong to protection scope of the present invention.
Claims (10)
1, a kind of controllable worm wheel and worm planet stepless speed changing driving device, it is characterized in that mainly by casing (10), be installed in the central gear worm screw (2) on the input shaft (1), planet carrier (5), planetary worm gear (3), ring gear (4), be installed with together output shaft (6) with planet carrier, servo drive (9), the speed regulation gear (7) that is fixedly installed togather with ring gear and constitute by the speed regulation gear (8) that servo drive drives, the planetary worm gear that is installed on the planet carrier meshes with central gear worm screw and ring gear respectively, the speed regulation gear that is fixedly installed togather with ring gear and constitute the speed regulation gear transmission by the speed regulation gear engagement that servo drive drives, input shaft and output shaft are installed on the casing, by the rotating speed realization output shaft of control servo drive and the ratio changing between the input shaft.
2, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 1 is characterized in that described planetary worm gear engaging tooth is embedded on the worm wheel body.
3, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 2 is characterized in that said engaging tooth rolling element is a kind of in spheroid, cylindrical body and the cone.
4, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 1 is characterized in that described servo drive is a kind of in actuating motor, hydraulic servo motor and the stepper motor.
5, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 1, it is characterized in that the speed regulation gear that is fixedly installed togather with ring gear and constituting the speed regulation gear transmission by the speed regulation gear that servo drive drives is a kind of in cylindrical gearing pair, Bevel Gear Drive pair, worm and gear transmission and the helical gear drive pair.
6, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 5 is characterized in that described cylindrical gears speed regulation gear transmission is a kind of in interior engagement driving and the outer gearing transmission.
7, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 5, the speed regulation gear (7) that it is characterized in that being fixedly mounted on the ring gear is fixedly mounted on the ring gear by alignment pin and fixing bolt.
8, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 5 is characterized in that the speed regulation gear (8) that driven by servo drive is linked together by the rotating shaft of coupling and servo drive.
9, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 1 is characterized in that described ring gear is a kind of in split type structure and the monolithic construction.
10, controllable worm wheel and worm planet stepless speed changing driving device as claimed in claim 1 is characterized in that said ring gear split type structure is rectilinear subdivision structure or the horizonally split formula structure that comprises axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021099 CN1858464A (en) | 2006-06-05 | 2006-06-05 | Controllable worm wheel and worm planet stepless speed changing driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610021099 CN1858464A (en) | 2006-06-05 | 2006-06-05 | Controllable worm wheel and worm planet stepless speed changing driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1858464A true CN1858464A (en) | 2006-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610021099 Pending CN1858464A (en) | 2006-06-05 | 2006-06-05 | Controllable worm wheel and worm planet stepless speed changing driving device |
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| CN (1) | CN1858464A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424280A (en) * | 2011-08-11 | 2012-04-25 | 三一集团有限公司 | Cab pitching device and bucket wheel machine |
| CN104675980A (en) * | 2015-01-06 | 2015-06-03 | 西华大学 | Automatic plane-enveloping internal-meshing worm and worm gear clearance elimination device |
| CN107917173A (en) * | 2017-11-24 | 2018-04-17 | 王朝 | A kind of transmission device of adjustable speed |
| CN109703690A (en) * | 2019-01-15 | 2019-05-03 | 东北大学 | A kind of multipurpose stepless transmission that can manually or automatically control |
| CN110816254A (en) * | 2018-08-10 | 2020-02-21 | 岳克森 | Wheel independent driving assembly with motor positioned above wheel |
| CN115057352A (en) * | 2022-08-18 | 2022-09-16 | 河南华工实业集团有限公司 | Embedded gear ratio speed governing crane wheel |
| CN115366673A (en) * | 2022-10-24 | 2022-11-22 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
-
2006
- 2006-06-05 CN CN 200610021099 patent/CN1858464A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424280A (en) * | 2011-08-11 | 2012-04-25 | 三一集团有限公司 | Cab pitching device and bucket wheel machine |
| CN104675980A (en) * | 2015-01-06 | 2015-06-03 | 西华大学 | Automatic plane-enveloping internal-meshing worm and worm gear clearance elimination device |
| CN104675980B (en) * | 2015-01-06 | 2017-02-22 | 西华大学 | Automatic plane-enveloping internal-meshing worm and worm gear clearance elimination device |
| CN107917173A (en) * | 2017-11-24 | 2018-04-17 | 王朝 | A kind of transmission device of adjustable speed |
| CN110816254A (en) * | 2018-08-10 | 2020-02-21 | 岳克森 | Wheel independent driving assembly with motor positioned above wheel |
| CN109703690A (en) * | 2019-01-15 | 2019-05-03 | 东北大学 | A kind of multipurpose stepless transmission that can manually or automatically control |
| CN109703690B (en) * | 2019-01-15 | 2020-04-28 | 东北大学 | Multipurpose stepless speed changer capable of being manually or automatically controlled |
| CN115057352A (en) * | 2022-08-18 | 2022-09-16 | 河南华工实业集团有限公司 | Embedded gear ratio speed governing crane wheel |
| CN115366673A (en) * | 2022-10-24 | 2022-11-22 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
| CN115366673B (en) * | 2022-10-24 | 2023-02-14 | 溧阳市新力机械铸造有限公司 | Gear shaft device for new energy automobile |
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